Claims
- 1. An electrochemical test strip comprising electrodes; anda reagent comprising reaction components appropriate for performing a test, and a dissolvable or suspendable film forming mixture including polyethylene oxide having a mean molecular weight from about 100 kilodaltons to about 900 kilodaltons, wherein the reagent is applied to the test strip in a wet form, and subsequently dried, and thereby adapted to be redissolved or resuspended upon addition of an aqueous test sample to the dried reagent.
- 2. The electrochemical test strip of claim 1, wherein the mean molecular weight of polyethylene oxide is about 300 kilo Daltons.
- 3. The electrochemical test strip of claim 1, wherein the reaction components appropriate for performing the test include an enzyme quinoprotein glucose dehydrogenase and a redox mediator ferricyanide.
- 4. The electrochemical test strip of claim 1, wherein the reaction components appropriate for performing a test include an enzyme quinoprotein glucose dehydrogenase and a redox mediator ferricyanide.
- 5. The electrochemical test strip of claim 4, wherein the enzyme quinoprotein glucose dehydrogenase comprises a stabilized association of coenzyme PQQ and the apoenzyme of quinoprotein glucose dehydrogenase.
- 6. The electrochemical test strip of claim 5, wherein the apoenzyme of quinoprotein glucose dehydrogenase is obtained from Acinetobacter Calcoaceticus.
- 7. The electrochemical test strip of claim 1, wherein the mixture is filtered by passage through a 100 micron sieve bag or a 100 micron filter integral to a pumping system.
- 8. An electrochemical test strip comprising electrodes; anda reagent comprising reaction components appropriate for performing a test and polyethylene oxide having a mean molecular weight from about 100 kilodaltons to about 900 kilodaltons, wherein the reagent is adapted to redissolve or resuspend upon addition of an aqueous test sample to the reagent.
- 9. The electrochemical test strip of claim 8, wherein the mean molecular weight of polyethylene oxide is about 300 kilo Daltons.
- 10. The electrochemical test strip of claim 8, wherein the dried reagent comprises about 6.2% polyethylene oxide by weight.
- 11. The electrochemical test strip of claim 8, wherein the dried reagent comprises from about 2,000 to about 9,000 units of enzyme activity per gram of reagent.
- 12. The electrochemical test strip of claim 8, wherein the reaction components appropriate for performing a test include an enzyme quinoprotein glucose dehydrogenase and a redox mediator ferricyanide.
- 13. The electrochemical test strip of claim 8, wherein a reaction component is selected from the group consisting of enzyme quinoprotein glucose dehydrogenase, polyethylene oxide, microcrystalline hydroxyethylcellulose, microcrystalline cellulose, monobasic potassium phosphate, dibasic potassium phosphate, potassium ferricyanide, sodium succinate, trehalose, and a surfactant.
- 14. The electrochemical test strip of claim 13, wherein the enzyme quinoprotein glucose dehydrogenase comprises a stabilized association of coenzyme PQQ and the apoenzyme of quinoprotein glucose dehydrogenase.
- 15. The electrochemical test strip of claim 14, wherein the apoenzyme of quinoprotein glucose dehydrogenase is obtained from Acinetobacter Calcoaceticus.
CROSS REFERENCE TO RELATED APPLICATION
This is a divisional application of U.S. application Ser. No. 08/985,840, filed Dec. 5, 1997.
US Referenced Citations (4)